NEC Neax 2400 Imx Business Features And Specifications

							NEAX2400 IMX Business Features and Specifications
NDA-24221, Issue 3
Page 201
Digital Display - Trunk D-6
D-6 Digital Display - Trunk
General Description
This feature provides the Attendant with a visual indication of incoming and outgoing trunk calls on the
ATTENDANT CONSOLE [A-3]. Trunk identification number, trunk route number, and TENANT [T-12] number,
or Central Office trunk code, are displayed in a numerical readout.
Operating Procedure
The DIGITAL DISPLAY TRUNK is automatically activated whenever the Attendant answers an incoming trunk
call or originates a trunk call.
Service Conditions
1. By pressing the loop key of a call that is in the ATTENDANT CAMP-ON [A-1] mode and using the DEST
key, the Attendant can determine both trunk and telephone number onto which the call is camped.
2. The trunk identification number is displayed on the right side of the ATTENDANT CONSOLE [A-3]
display while TENANT [T-12] and trunk route numbers are simultaneously displayed on the left.
Example 1:
Example 2:
Example 3:
3. If the Trunk Route Number is three digits, the Trunk Identification Number and Trunk Route Number are
displayed.
4. The ATTENDANT CONSOLE [A-3] digital display is limited to a 6-digit numeric display. Since the
Class of Service and trunk routing display is in numeric form, a list must be provided to the Attendant
explaining the restrictions of each Class of Service number and trunk identification number.
5. The DIGITAL DISPLAY - TRUNK feature displays trunk routing information or a 4-digit C.O. line
number. The method used can be optionally selected on a per-trunk group basis.
6. The DIGITAL DISPLAY - TRUNK feature will occur whenever the Attendant answers/originates: 
a.) an incoming C.O. (DID, Bothway, Oneway, FX, WATS) type call.
b.) an incoming TIE Line call. 
c.) an intercept call. 
d.) an outgoing C.O. (DOD, WATS, FX) type call. 
                  Tenant Number   Route Number   Trunk Identification Number
     1           2           1    5
   (1 digit)              (2 digits)                   (3 digits)
                  9       7      0       0  
      
                                               Route Number          Trunk Identification Number
       1       1       1       1       2       2            
    (3 digits)                             (3 digits) 
						

							NEAX2400 IMX Business Features and Specifications
Page 202NDA-24221, Issue 3
D-6 Digital Display - Trunk
Service Conditions (cont’d)
e.) an outgoing TIE Line call or re-enters a held trunk call.
7. An Attendant Console also indicates the C.O. code assigned by System Data at each node in the FCCS
network. 
						

							NEAX2400 IMX Business Features and Specifications
NDA-24221, Issue 3
Page 203
Direct-In Termination (DIT) D-7
D-7 Direct-In Termination (DIT)
General Description
This feature automatically routes incoming public network calls directly to a pre-selected station without Attendant
assistance. The call can then be processed by the called party. THREE-WAY CALLING [T-2], CALL TRANSFER
[C-10], etc., are handled in the same manner as any normal trunk call.
Operating Procedure
The calling party, outside the system, dials the desired number as usual. However, the call is answered directly at a
predetermined station, bypassing the ATTENDANT CONSOLE [A-3].
Service Conditions
1. Any group(s) of trunks can be used, up to the maximum capacity of the NEAX2400 IMX.
2. Bothway trunks can be used for DIRECT-IN TERMINATION, but incoming only trunks are
recommended.
3. It is not necessary to have special DID trunk connections to the public network as is required with DIRECT
INWARD DIALING [D-8]. However, care should be exercised in the application of Central Office trunk
hunting.
4. If the DIT station is busy, the incoming call is kept ringing until the DIT station becomes idle, or forwarded
to the ATTENDANT CONSOLE [A-3].
5. If there is no answer at a station, the calling party will continuously receive ringback tone. There is no
AUTOMATIC RECALL [A-8] to the Attendant in this case.
6. If the station is assigned to a STATION HUNTING [S-7, 8, 9] group, the incoming call will follow the
hunt group station assignment. If the station is in a CALL FORWARDING [C-2, 3, 5] mode, the incoming
call is connected to the CALL FORWARD target station.
7. This feature is normally used where direct-in service is required on a limited basis. The number of stations
serviced is effectively limited to the number of trunks available for DIRECT-IN TERMINATION.
8. DIRECT-IN TERMINATION is mutually exclusive with NIGHT CONNECTION - FIXED [N-1].
9. DIT trunks can be programmed to terminate elsewhere in the Night mode.
10. When the system is in the Night mode of operation and the DIRECT-IN TERMINATION (DIT) station
is busy, the call will divert to TAS if provided, otherwise, the call will wait on the busy station until it
becomes idle.
11. More than one trunk can be arranged for DIRECT-IN TERMINATION to a particular station line.
12. The DIT call can terminate to a DO NOT DISTURB [D-11D] station.
13. When a DIT call terminates to a restricted station or a station setting CALL FORWARDING - ALL
CALLS [C-5]/BUSY LINE [C-2], or MULTIPLE CALL FORWARDING - ALL CALLS [M-44] / BUSY
LINE [M-24] to a restricted station, the call is routed to the Attendant and terminates at the “ICPT” key
on the ATTENDANT CONSOLE [A-3].
Note:This service can be activated in system data.
14. After a call is answered, it can be processed by the called station like any normal trunk call.
15. Only the telephone number is available for the destination station assignment when activating this feature
via FCCS.
16. When activating this feature via the FCCS network, this feature is activated by data in the LDM of the
node accommodating the terminated COT. 
						

							NEAX2400 IMX Business Features and Specifications
Page 204NDA-24221, Issue 3
D-7 Direct-In Termination (DIT)
Service Conditions (cont’d)
17. When activating this feature via the FCCS network, when the telephone number of the destination station
is deleted:
a.) When the Attendant Console is used, the DIT call terminates to the Attendant Console.
b.) When the Attendant Console is not used, or if the Attendant Console is in night mode, the caller
hears ringback tone.
18. When activating this feature via the FCCS network, a DIT call cannot be queued while all the FCCS links
are busy. Calling party receives ringback tone at that time and after the FCCS link is restored to idle.
19. When activating this feature via the FCCS network, the different destination for C.O. incoming call (ring
down) cannot be set at each tenant group.
Interactions
1. Night DIT service is NIGHT CONNECTION - FIXED [N-1]. The NIGHT CONNECTION - FIXED/
FLEXIBLE [N-1, 2] feature can be used to simulate a DIT application.
2. When using NIGHT CONNECTION - FIXED/FLEXIBLE [N-1, 2], if the station is busy, the call will
divert to TRUNK ANSWER ANY STATION [T-8], if provided. If not provided, the call will queue at the
busy station until it becomes idle.
3. The DIRECT-IN TERMINATION trunk is limited to the following types:
a.) DDD
b.) FX
c.) WATS
d.) CCSA
4. All CALL FORWARDING [C-2, 3, 5] features may be used in conjunction with DIRECT-IN
TERMINATION. In the case of CALL FORWARDING - DON’T ANSWER [C-3], the call must
physically be ringing the DIT station. Call Forwarding is only available from a ground start DIT trunk.
5. STATION HUNTING [S-7, 8, 9] and UNIFORM CALL DISTRIBUTION (UCD) [U-1] may be used
with DIRECT-IN TERMINATION. 
						

							NEAX2400 IMX Business Features and Specifications
NDA-24221, Issue 3
Page 205
Direct Inward Dialing (DID) D-8
D-8  Direct Inward Dialing (DID)
General Description
This feature provides for all incoming calls from the public network (except FX or WATS) to reach any system
station without Attendant assistance.
Operating Procedure
The calling party, outside the system, dials the telephone number as usual. However, the call is answered directly at
a predetermined station, bypassing the Attendant.
Service Conditions
1. This feature requires that special DID trunks and telephone numbers be obtained through the local
telephone company.
Note:Not all telephone company Central Offices are capable of providing this service.
2. If the Central Office numbering plan differs from the user’s station numbering plan, addition or deletion
of digits can be implemented to coincide with the existing numbering plan.
3. This feature is normally used when DIRECT-IN service is desired on an extensive or system-wide basis.
4. DID is also frequently referred to as CENTREX service.
5. If the called station is non-existent, the DID call is automatically routed to the Attendant or another
predesignated station. Calls to invalid numbers can be routed to an Attendant or to a recorded
announcement. See CALL FORWARDING - INTERCEPT/ANNOUNCEMENT [C-25].
6. Wink-start or delay-start signaling is recommended for use in conjunction with this feature.
7. The DID trunk contains a switchable 2db transmission pad that is switched in or out via software control.
8. If DID trunk is immediate start, dial pulse is required.
Interactions
1. Incoming calls have priority over outgoing calls. When a register is assigned as an Outgoing Register
Trunk (ORT), it will also act as an Incoming Register Trunk (IRT) if no IRTs are available. Therefore,
ORTs can act as IRTs, but if IRTs are programmed, they will not act as ORTs.
2. If immediate Start DID trunks are required, Incoming Register Trunks must be programmed in the same
local processor as the DID trunks.
3. CALL FORWARDING [C-2, 3, 5]: When a station has activated a Call Forwarding feature (CALL
FORWARDING - ALL CALLS [C-5], CALL FORWARDING - BUSY LINE [C-2], CALL
FORWARDING - DONT ANSWER [C-3]), the DID call is forwarded to a designated station rather than
to the specific station dialed.
4. STATION HUNTING [S-7, 8, 9]: If the called station is arranged for this feature and is busy, the call
follows any prescribed hunting pattern.
5. CALL WAITING - TERMINATING [C-12]: If the called station has the Call Waiting - Terminating
feature, Call Waiting ringback tone to the calling party is provided when the called station is busy. The
called station hears a 2-burst Call Waiting Tone. Call Waiting is allowed in CDN 46:CW, of ARDT
command.
6. On an incoming call to a busy station, the Call Forwarding feature takes precedence over the Station
Hunting feature, and the Station Hunting feature takes precedence over the Call Waiting feature.
7. The PA-8TLT circuit card provides interface capabilities for eight DID circuits. 
						

							NEAX2400 IMX Business Features and Specifications
Page 206NDA-24221, Issue 3
D-9 Direct Outward Dialing (DOD)
D-9 Direct Outward Dialing (DOD)
General Description
This feature permits any user to gain access to the public network without the assistance of the Attendant, by dialing
an access code and receiving a second dial tone. The user may then proceed to dial the desired public network
number.
Operating Procedure
To place an outside call:
1. Go off-hook; receive dial tone,
2. Dial the trunk access code (usually “9”),
3. Receive second dial tone from Central Office,
4. Dial the desired telephone number,
5. If the call is denied for any reason, reorder tone is heard.
Service Conditions
1. Outgoing connection restriction can be assigned on an individual station basis. Refer to CLASS OF
SERVICE - INDIVIDUAL [C-15].
2. TOLL RESTRICTION - 3/6-DIGIT [T-7] may be applied to DIRECT OUTWARD DIALING.
3. Various types of trunks (FX, WATS, tie, CO, etc.) can be directly accessed using this feature.
4. The trunk group access code is limited to a maximum of three digits (only when the SPEED CALLING
[S-3, 3D, 21, 23] service is required).
5. Use of the DOD feature can be denied on a per-trunk group basis when the following restrictions are active
on the originating station line.
 Fully Restricted Stations: Direct Outward Dialing attempts are routed to reorder tone when the station
is fully restricted.
 Restriction from Outgoing Calls: A station assigned this feature is denied the ability to dial-access
preselected trunk groups.
 HOT LINE [H-1]: Exchange network call completion using this feature is not permitted. The
originating station can only be routed to the ATTENDANT CONSOLE [A-3] or another station when
going off-hook.
 MISCELLANEOUS TRUNK RESTRICTION [M-3]: Preselected station lines are denied access to
preselected miscellaneous trunk groups, the station is routed to reorder tone when the station attempts
to originate a call on the trunk group.
 TOLL RESTRICTION: Level of this feature restricts unauthorized station lines ability to complete
outgoing Central Office or Foreign Exchange calls to specified areas or office codes within an area.
 TOLL DENIAL: A station with Toll Denial is routed to reorder tone when a 0 or 1 is dialed as the first
digit after the trunk access code has been dialed.
6. The outgoing call using a trunk in the remote node via FCCS link is available. For more detailed
information, see the NEAX2400 IMX Fusion Network System Manual.
Interactions
The COT circuit card is used for all ringdown trunks. This circuit card is equipped to interface with Central Office
circuits and may be used for either loop start or ground start trunks. 
						

							NEAX2400 IMX Business Features and Specifications
NDA-24221, Issue 3
Page 207
Distinctive Ringing D-10
D-10 Distinctive Ringing
General Description
This feature provides distinctive station ringing patterns so that the user can distinguish between internal and
external incoming calls.
Operating Procedure
No manual operation is required.
Service Conditions
1. This feature provides the following ringing patterns:
a.) Ringing for Incoming Internal Call
 When a Service Feature Class that allows Personal Ringer (ASFC command, SFI148) is assigned 
to a station:
(RINGER PATTERN 1)
Ringing for Incoming Internal Call to Pilot Number:
2-second ring
4-second silence
(RINGER PATTERN 5)
Ringing for Incoming Internal Call to Personal Number (ex. My Line): 
(Note)
2-second ring (3 bursts)
1-second silence
Note:Personal Number means the telephone number allowed Personal Ringer function.
 When a Service Feature Class that restricts Personal Ringer (ASFC command, SFI148) is assigned 
to a station:
(RINGER PATTERN 1)
2-second ring
4-second silence
b.) Ringing for Incoming External Call:
(RINGER PATTERN 0)
1-second ring
2-second silence
c.) Recall Ringing for CALL BACK [C-1], CALL WAITING - ORIGINATING [C-31], or
OUTGOING TRUNK QUEUING [O-2]:
(RINGER PATTERN 1)
2-second ring
4-second silence
Or
(RINGER PATTERN 5)
2-second ring (3 bursts)
1-second silence
Note:These timing parameters can be changed via the end users requirements (1-15 seconds).
2. This feature may be assigned per-trunk route via System Data programming.
3. If an Off-Premises Station (OPX) or denied station is assigned to a station line, an option is available for
that Class of Service to eliminate burst ringing signals. 
						

							NEAX2400 IMX Business Features and Specifications
Page 208NDA-24221, Issue 3
D-10 Distinctive Ringing
Service Conditions (cont’d)
4. The DISTINCTIVE RINGING interruption rates can be optionally selected on a per-system basis. In this
case, system initialization may be required.
5. An option is available on a per-trunk group basis to provide one-burst ringing on terminating calls.
6. When calling a third station (THREE-WAY CALLING [T-2], CONSULTATION HOLD [C-17], etc.),
the ringing signal to the called station depends on the type of facility (station or trunk) on hold.
Interactions
1. CALL HOLD [C-6]: Recall ringing for CALL HOLD [C-6] can be distinguished between a held station
call (2-burst ringing) from a held trunk call (1-burst ringing).
2. CONSULTATION HOLD [C-17]: Station A places Party B on CONSULTATION HOLD [C-17] and
calls Station C. If Party B is a trunk, Station C hears DISTINCTIVE RINGING for a trunk call. If Party
B is a station, Station C hears distinctive ringing for a station call.
3. When Personal Ringer function is set to a station, if an incoming internal call is terminated to the personal
number and the call is transferred by CALL FORWARDING - DON’T ANSWER [C-3], Ringer Pattern
of the transferred station varies depending upon the type of the telephone as shown below:
Type Of Transferred Station Ringer Pattern
Analog Telephone 1
D
term5 
						

							NEAX2400 IMX Business Features and Specifications
NDA-24221, Issue 3
Page 209
Do Not Disturb - DtermD-11D
D-11D  Do Not Disturb - Dterm
General Description
This feature allows a user to establish DO NOT DISTURB status. Incoming calls will be denied access to MY Line,
while DO NOT DISTURB status is in effect.
Operating Procedure
To set DO NOT DISTURB: 
1. Press the DO NOT DISTURB (DND) key. The associated LED will light. The LCD displays: 
To cancel DO NOT DISTURB:
2. Press the DO NOT DISTURB (DND) key. The LED will go out. The LCD displays:
Service Conditions 
1. This service can only be set or cancelled while the Dterm is idle.
2. Lines programmed to ring will not do so while this service is set.
3. While DO NOT DISTURB is set, outgoing calls may be made. The user may answer other lines, excluding
MY Line.
4. DND is not displayed on the calling station’s D
term when the called station is in the DO NOT DISTURB
condition. Restriction (REST) appears on the display in place of DND; reorder tone is heard, and no
indication will appear in the DO NOT DISTURB condition when the calling station is a HOTLINE [H-1].
5. A DND station in a HUNT GROUP [D-7, 8, 9] is skipped.
6. CALL FORWARDING - BUSY LINE [C-2] can be activated for an idle station that has set DND.
7. The following service features are denied to the DND station: 
ATTENDANT CAMP-ON WITH TONE INDICATION [A-1] 
ATTENDANT OVERRIDE [A-7] 
BOSS-SECRETARY OVERRIDE - D
term[B-5D] 
BUSY VERIFICATION [B-3] 
EXECUTIVE RIGHT-OF-WAY [E-1, E-1D] 
VOICE CALL - D
term[V-2D]
8. When the user sets DO NOT DISTURB while engaged in a call, privacy is set. In this case, the following
services will be restricted:
CALL WAITING TERMINATING [C-12]
EXECUTIVE RIGHT-OF-WAY [E-1, E-1D]DND SET
                   (Time Display) 
DND CANCEL
                    (Time Display) 
REST
XXXXX
                   (Time Display)  
						

							NEAX2400 IMX Business Features and Specifications
Page 210NDA-24221, Issue 3
D-11D Do Not Disturb - Dterm
Interactions
1. DO NOT DISTURB may be listed in some literature as available by a programmable Line/Feature key. A
Dterm ACD station is not equipped with a DND key. If DO NOT DISTURB is to be made available to this
station, it must be programmed to a Line/Feature key.
2. DATA INTERFACE-AUTOMATIC ANSWER may be activated if the D
term station is in the DO NOT
DISTURB mode.